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For most cmpds of the main group elements the lone pairs are of equal importance as bond pairs in determining structure hence the basis of VSEPR theory. The lone pairs are said to be stereochemically active. But for some higher-coordination main-group cmpds the lone pair becomes stereochemically inactive. For example, the [SeCl6]2-, [SeBr6]2-, [TeCl6]2-, and [TeBr6]2- ions all have regular octahedral structures in the solid state. But According to VSEPR these AX6E ions should not have a regular octahedral structure.
For transition metal cmplxs and organometallic cmpds the d e-s are completely stereochemically inactive: d AOs point between the ligands (e.g., oct [M(H2O)6]^n+ ions) or are involved in π bonding. Cr(CO)6 (octahedral), Fe(CO)5 (trigonal bipyramidal), Ni(CO)4 (tetrahedral), but all have 18 e-s: geometry dictated by ligands. ;)
Wiki User
∙ 11y ago
Wiki User
∙ 15y agoElectrons are neither good nor bad. They just are. They spin around the nucleus of an atom, in varying number, and help keep things together.
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Which subatomic particle determines reactivity?
Electrons, for chemical reactions
How does a magnet work in a Microwave?
The active device in a microwave oven is a magnetron, a thermionic vacuum tube. In this a powerful magnet is employed to force the electrons to travel in a spiral in the resonant cavities. This geometry determines the wavelength of the waves.
What are the electrons in the outer shell?
Those electrons are the valence electrons. They are the electrons which mostly take part in exchange of electrons or sharing of electrons. Hence, valence shell electrons are a very important part of chemistry since all the reactions due to them only.
The electrons that occupy the outermost filled shell are called?
Outer energy level electrons, or valence electron.
How many valence electrons are found in a krypton atom?
There are 8 Valence Electrons.
When non metals are most active they can do what?
easily gain electrons
Is a atom with 7 neutrons 6 protons and 6 electrons active or inert?
active
How checially active an element is depends on the losing gaining or sharing of what?
Electrons
What stops the flow of electrons in a circuit?
all passive elements which absorb energy from active elements can control the flow of electrons
Why noble gasses are not active?
Noble gases are not active because of their outer shells. The outer shells of these gases are full of 8 valence electrons, which make them stable and inert.
What particles play the most active role in chemical bonding?
I think it's electrons.
If the outermost electron shell of an element is not filled with electrons to its maxium capacity the element is not chemically active?
false
What is a active metal?
An active metal is a type of a metal that tends to react with toughness, and speed, to other elements because of the arrangement of electrons in its structure. Each active metal has a single electron in its outer shell.
Why are alkali metals active?
because they have outer electrons than can merge with other elements. all elements want to have full outer electron shells, and they only have a few outer electrons.
Explain how you know that it is an electric field not electrons that moves rapidly through a circuit?
Electrons in an active circuit either drift slowly, or just jiggle back and forth in one place.
Are alkali metals active?
because they have outer electrons than can merge with other elements. all elements want to have full outer electron shells, and they only have a few outer electrons.
Why metals have low electronegativity?
Metals that are chemically active have low electronegativity because matals have a weak attraction to electrons.
